[关键词]
[摘要]
描述产自辽宁西部北票上园地区和凌源大王杖子义县组长节锯蜂科 (Xyelidae)巨长节锯蜂亚科(Macroxyelinae)昆虫化石 12种 ,归于 4族 8属 ,其中 6新属 12新种 ,包括Angaridyela robusta sp .nov .,An-garidyela exculpta sp .nov .,Angaridyela suspecta sp .nov .,Angaridyela endemica sp .nov .,Lethoxyela excurva gen .et sp .nov .,Lethoxyela vulgata gen .etsp .nov .,gen .et sp .nov .,Liaoxyela antiqua gen .et sp .nov .,Heteroxyela ignota gen .et sp .nov .,Sinoxyela viriosa gen .et sp .nov .,Isoxyela rudis gen .et sp .nov .和Xyelites lingyuanensis sp .nov .,并讨论其古气候特征
[Key word]
[Abstract]
Twelve species of Xyelidae （Insecta Hymenoptera Symphyta） are described from the Upper Jurassic Yixian Formation ofShangyuan Beipiao and Dawangzhangzi Lingyuan in western Liaoning Province China．These sawflies are assigned to8genera of4tribeswithin the subfamily Macroxyelinae with6genera12species recognized as new including A ngaridyela robusta sp．nov．A ngaridyelaexculpta sp．nov．A ngaridyela suspecta sp．nov．A ngaridyela endemica sp．nov．Lethoxyela excurv a gen．et sp．nov．Lethoxyelav ulgata gen．et sp．nov．Ceratoxyela decorosa gen．et sp．nov．Liaoxyela antiqua gen．et sp．nov．Heteroxyela ignota gen．et sp．nov．Sinoxyela viriosa gen．et sp．nov．Isoxyela rudis gen．et sp．nov．and Xyelites lingyuanensis sp．nov．The palaeoclimate isbriefly discussed here．
[中图分类号]
Q91
[基金项目]
国家自然科学基金(No .49832020 )； 特殊学科点人才培养基金； 国家重点基础研究发展规划(No .G2000077700 )； 中国科学院；
